Sora no Hāto | Assassination Classroom

She was deprived of a proper childhood, forced into a world of violence; a place no child should be. From the age of four to twelve, Akiko's daily routine was hours of training, torturing amounts of pain, brain-crushing education and fighting. The rough treatment resulted in a loss of emotion, pain and sense of morality.

Can you imagine? A girl as young as twelve, being able to kill without hesitance, guilt or disgust?

Yet, all it took was someone who didn't know a single thing about her to trigger the tiniest mote of humanity within her, sparking a fire and allowing it to slowly grow into a conquering blaze.